Some weird issue with my Acer monitor

Last month I bought a Acer KG1 27inch 144hz gaming monitor and three days ago the monitor would only show no signal on Display Port, when my pc is on.
I used a HDMI cable and it works fine just at 60hz thought, I plugged a different computer into the display port of my monitor and it worked fine.
I then plugged my computer into a different monitor using display port and it worked fine.

Btw ive tried different display port cables plus different graphics cards in my pc and they all don't work with my monitor but the do with other monitors

Please can someone help me figure this out.

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Du_little

Hi Lewiswulski,

Try to remove all the cables from the monitor including the power code. press and hold the power button on the monitor for 30secs. then connect the power code and dp. restart the computer after connecting with the monitor.
Check the settings on the monitor if the source is in hdmi or dp. try to keep it in auto source. Check and revert back.